I'd like to ask if the following sentences are simple or compound sentences?
She cooks very well and has a lovely cafe.
Players are careful but they still get hurt often.
She doesn't like art and he doesn't like philosophy.
In the first sentence the verbs shares the same subject, in the second sentence the same subject shares different verbs and in the third sentence two different subjects share the same tensed verbs. So how to differentiate a simple or a compound sentence by just look at the what/who shares what? What is the best way?